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-   -   Do I need a fuel pump for stage 2 2013 wrx? (https://www.i-club.com/forums/engine-management-66/do-i-need-fuel-pump-stage-2-2013-wrx-253335/)

Subi 08-04-2013 08:08 PM

Do I need a fuel pump for stage 2 2013 wrx?
 
I was wondering if i would need to upgrade my fuel pump for my 2013 wrx. I read some forums and they said you don't. So i'm just making sure if it's really recommended. :sign0085:

flat489 08-04-2013 08:13 PM

are you just going to be running an OTS cobb stage 2 map? If so, you do not need a fuel pump. If you plan on getting tuned you probably will, but I would talk with your tuner first and see what their preference is.

Poweredbysnail 08-04-2013 08:19 PM

I have tuned them both ways on the newer wrx's the upgrade pump does help with the fueling on the car and in turn will make more power.

brewsky79 08-04-2013 11:49 PM

From my experience tuning (lol, 3 cars!) the injectors seem to run out of room before the fuel pump reaches it's limit.

2 x Cobb AP
1 x Hydra EMS

Poweredbysnail 08-04-2013 11:55 PM

Yes that is true but if you at least have a fuel pump that flows more than the stock pump your injector won't max out as soon. But you can still max them out with a upgraded pump too.

silverbullet415 08-05-2013 12:17 AM

It wouldn't hurt

brewsky79 08-05-2013 12:59 AM

[QUOTE=Poweredbysnail;3433178]Yes that is true but if you at least have a fuel pump that flows more than the stock pump your injector won't max out as soon. But you can still max them out with a upgraded pump too.[/QUOTE]

Very true. I maxed out my stock injectors with the stock fuel pump somewhere around 3500-4000 rpm, where as now they max out around 5000 rpm on the Aeromotive 340 lph pump. The injector duty cycle runs about 90% up until 4500 rpm where it begins to climb.

Thanks Snail!


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